On Unix systems, opening a file in an os.Root improperly follows symlinks to locations outside of the Root when the final path component of the a path is a symbolic link and the path ends in /. For example, 'root.Open("symlink/")' will open "symlink" even when "symlink" is a symbolic link pointing outside of the root.
Advisories
No advisories yet.
Fixes
Solution
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Workaround
No workaround given by the vendor.
References
History
Wed, 08 Jul 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-61 | |
| Metrics |
cvssV3_1
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Wed, 08 Jul 2026 17:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Go Standard Library
Go Standard Library os |
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| Vendors & Products |
Go Standard Library
Go Standard Library os |
Wed, 08 Jul 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | On Unix systems, opening a file in an os.Root improperly follows symlinks to locations outside of the Root when the final path component of the a path is a symbolic link and the path ends in /. For example, 'root.Open("symlink/")' will open "symlink" even when "symlink" is a symbolic link pointing outside of the root. | |
| Title | Root escape via symlink plus trailing slash in os | |
| References |
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Projects
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Status: PUBLISHED
Assigner: Go
Published:
Updated: 2026-07-08T19:39:17.341Z
Reserved: 2026-04-07T18:13:03.527Z
Link: CVE-2026-39822
Updated: 2026-07-08T18:05:38.120Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-07-08T17:30:03Z
Weaknesses